Thermodynamics of Hydride Formation and Decomposition in Supported Sub-10 nm Pd Nanoparticles of Different Sizes Full article
Journal |
Chemical Physics Letters
ISSN: 0009-2614 , E-ISSN: 1873-4448 |
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Output data | Year: 2014, Volume: 603, Pages: 75-81 Pages count : 7 DOI: 10.1016/j.cplett.2014.04.036 | ||||
Tags | HYDROGEN-STORAGE; PALLADIUM; ABSORPTION; SOFT; DFT | ||||
Authors |
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Affiliations |
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Funding (4)
1 | Stiftelsen för strategisk forskning | RMA11-0037 |
2 | Swedish Research Council | 2010-4041 |
3 | Swedish Research Council for Environment Agricultural Sciences and Spatial Planning | 229-2009-772 |
4 | Knut and Alice Wallenberg Foundation |
Abstract:
Hydrogen storage properties of supported Pd nanoparticles with average sizes in the range 2.7–7.6 nm were studied using indirect nanoplasmonic sensing. For each particle size, a series of isotherms was measured and, through Van't Hoff analysis, the changes in enthalpy upon hydride formation/decomposition were determined. Contrary to the expected decrease of the enthalpy, due to increasing importance of surface tension in smaller particles, we observe a very weak size dependence in the size range under consideration. We attribute this to a compensation effect due to an increased fraction of hydrogen atoms occupying energetically favorable subsurface sites in smaller nanoparticles.
Cite:
Wadell C.
, Pingel T.
, Olsson E.
, Zorić I.
, Zhdanov V.P.
, Langhammer C.
Thermodynamics of Hydride Formation and Decomposition in Supported Sub-10 nm Pd Nanoparticles of Different Sizes
Chemical Physics Letters. 2014. V.603. P.75-81. DOI: 10.1016/j.cplett.2014.04.036 WOS Scopus РИНЦ
Thermodynamics of Hydride Formation and Decomposition in Supported Sub-10 nm Pd Nanoparticles of Different Sizes
Chemical Physics Letters. 2014. V.603. P.75-81. DOI: 10.1016/j.cplett.2014.04.036 WOS Scopus РИНЦ
Files:
Full text from publisher
Dates:
Submitted: | Feb 18, 2014 |
Accepted: | Apr 18, 2014 |
Published online: | Apr 26, 2014 |
Published print: | May 30, 2014 |
Identifiers:
Web of science | WOS:000336485400016 |
Scopus | 2-s2.0-84900426717 |
Elibrary | 21877578 |
Chemical Abstracts | 2014:878263 |
Chemical Abstracts (print) | 161:42962 |
OpenAlex | W2080278481 |